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1 | #ifndef ALIRAWREADER_H |
2 | #define ALIRAWREADER_H |
3 | /* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * |
4 | * See cxx source for full Copyright notice */ |
5 | |
6 | #include <TObject.h> |
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7 | |
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8 | |
9 | struct AliMiniHeader { |
10 | UInt_t fSize; |
11 | UChar_t fDetectorID; |
12 | UChar_t fMagicWord[3]; |
13 | UChar_t fVersion; |
14 | UChar_t fCompressionFlag; |
15 | UShort_t fDDLID; |
16 | }; |
17 | |
18 | class AliRawReader: public TObject { |
19 | public : |
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20 | AliRawReader(); |
21 | |
22 | void Select(Int_t detectorID, |
23 | Int_t minDDLID = -1, Int_t maxDDLID = -1); |
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24 | |
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25 | inline Int_t GetDataSize() const {return fMiniHeader->fSize;}; |
26 | inline Int_t GetDetectorID() const {return fMiniHeader->fDetectorID;}; |
27 | inline Int_t GetDDLID() const {return fMiniHeader->fDDLID;}; |
28 | inline Int_t GetVersion() const {return fMiniHeader->fVersion;}; |
29 | inline Bool_t IsCompressed() const {return fMiniHeader->fCompressionFlag != 0;}; |
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30 | |
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31 | virtual Bool_t ReadMiniHeader() = 0; |
32 | virtual Bool_t ReadNextData(UChar_t*& data) = 0; |
33 | virtual Bool_t ReadNextInt(UInt_t& data); |
34 | virtual Bool_t ReadNextShort(UShort_t& data); |
35 | virtual Bool_t ReadNextChar(UChar_t& data); |
36 | |
37 | virtual Bool_t Reset() = 0; |
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38 | |
39 | protected : |
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40 | Bool_t IsSelected(); |
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41 | |
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42 | Bool_t CheckMiniHeader(); |
43 | virtual Bool_t ReadNext(UChar_t* data, Int_t size) = 0; |
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44 | |
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45 | AliMiniHeader* fMiniHeader; // current mini header |
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46 | Int_t fCount; // counter of bytes to be read for current DDL |
47 | |
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48 | Int_t fSelectDetectorID; // id of selected detector (<0 = no selection) |
49 | Int_t fSelectMinDDLID; // minimal index of selected DDLs (<0 = no selection) |
50 | Int_t fSelectMaxDDLID; // maximal index of selected DDLs (<0 = no selection) |
51 | |
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52 | ClassDef(AliRawReader, 0) // base class for reading raw digits |
53 | }; |
54 | |
55 | #endif |